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ITU-T Q.86.4
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ITU-T Q.86.4
Stage 2 description for charging supplementary services : International Freephone Service (IFS)More info
Consistent with Recommendation E.152, International Freephone Service (IFS) Stage 1, this Recommendation constitutes the Stage 2 description for the service, including the functional architecture, Intelligent Network-based descriptions for normal IFS and optional features, and allocation of functional entities to physical locations. This Recommendation also provides Q.1200-Series references for information flows, SDL diagrams, and functional entity actions.
| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.040.35 : Telephone networks
|
| Number of pages | 19 |
| Year | 1990 |
| Document history | |
| Country | International |
| Keyword | CCITT Q.86;CCITT Q.86.4;ITU-T Q.86;ITU-T 86;86;ITU-T Q.86.4 |